Johan robert alsing



(No Model.)

J. R. ALSING.

'TRITURATING MILL. No; 396,453. [3 {Patented Jan. 22, 1889.

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JOHAN ROBERT ALSING, OF NEXY YORK, N. Y.

TRITURATING-MILL.

SPECIFICATION forming part of Letters Patent No. 396,453, dated January22, 1889.

h Application filed February 11, 1886- erial No. 191,584. (No model.)

To all whom it may concern.-

Be it known that I, J ()HAN ROBERT ALSING, a citizen of Sweden, and aresident of New York, in the county and State of New York, have inventeda new and useful Improvement in lriturating-Mills, of which thefollowing is a specification.

My invention relates to that class of mills invented by me for grindingpottery materials, &c., andgenerally known in the market as Alsingspulverizing-cylinders, in which granulated materials, inclosed togetherwith hard pebbles or balls in a horizontal cylinder, are ground to animpalpable powder by the constant tumbling, rolling, and sliding of thecharge, caused by revolving the said cylinder.

The improvemen.t,which will be hereinafter fully described, andspecifically pointed out in the claims, has for its object to adapt theaforesaid dry-grinding mill 'for wet grinding alsothat is, grinding thesubstances together with a liquidsuch as water or oilwith which theyultimately have to be mixed before molding, as for porcelain ware, orbefore application in painting, as for pigments.

In the accompanying drawings, Figure 1 represents, partially in section,a plan view of the cylinder as fitted for wet grinding. Fig. 2 shows,partially in section, an end view of the same as fitted for removing thecharge after wet grinding. Fig. 3 is a detail perspective view of thelining-block in which the cover is fitted. Fig. l is a detail plan viewof the discharge-spout, looking down from its position in Fig. 2. Fig.o'is a detail view from the section-line 5c in direction of arrow 1,showing the air-plug-fastenin device.

A is the exterior iron shell of the cylinder, covered on the inside witha wooden lining, (1, within which is the lining B, of porcelain or othervitreous substance in blocks cemented together and to the wooden liningby plasterof-paris, as usual.

As porcelain material is spoiled by rust, and in admitting water intothe cylinder rust from the outer shell might easily work into thesubstance, and because the swelling of the wooden lining by the watermight cause damage, I provide between the wooden lining a (or the shellin small cylinders, where a wooden lining is not used) and the lining Ba waterproof layer, H, of hydraulic cement, rubber cement, or any otherwater-proof substance.

The cover J of the charge-opening is kept tight in the following manner:The iron cap (1 of the cover, which is provided with the ordinaryhandles, f, and a central seat, 0, (against which the screw of theordinary screw-bar fastening, j, presses to keep the cover tight,) has arecess in its inner surface, in which a slightly-conical block, 6, issecured, preferably by heating and shrinking the iron cover 011 it. Theblock 6' is turned on its surface, where it enters and fits tightly inthe lining B, and a special block, K, constituting a portion of thelining B, is specially made and provided with a round conical openingturned to receive the block b, so that the two will fit together in themanner of a stopple ground in the neck of a bottle.

The granulated substances to be operated upon having been introducedinto the cylinder through the charge-opening, and the required quantityof triturating balls or pebbles and a liquidas water, oil, or othersuitable 'substanceintroduced with it, the cover J is tightened and thecylinder revolved until the desired fineness is obtained.

To remove the charge, the cylinder is placed in position with the coverup. The cover is then removed and in its place is inserted thedischarge-funnel L. This is provided with a hollow slightly-conicalpart, suitable to replace the'block. e in the opening, and its inner endis provided with grate bars Z, by which the triturating-balls areretained in the cylinder, while the finished charge is enabled to flowout. In one piece with the funnel L is the discharge pipe or spout M,preferably curved, as shown in Fig. 2, to insure an easy flow of thesubstance, and covered on the end with a cap, on, securable by threadsor simply a bayonet-joint or other mode of fastening sufficient toprevent spilling while turning the cylinder to bring the discharge-spoutfrom the position where it was inserted, as in Fig. 1, to the lowerposition, as in Fig. 3.

The charge-opening is surrounded outside the cylinder with a ring, 7;,of fiat surface, and the discharge-spout is provided with a flange, N,in which is an annular groove, and in the said groove a rubber ring, or,placed on its edge, which, when the discharge-spout is in position,tightens against the aforesaid rim or ring it. Upon the surface of thedischargespout, in line with the cylinders radius drawn through thecenter of the charge-openin g, is aseat, 0, exactly corresponding to thesimilar seat 0 upon the cover J, so that when the cover is removed andthe discharge-spout inserted in its place the same ordinary bar andscrew, j, may be used to secure itin place and tighten the packing-ringn against the su rtace of the ring 71?.

It is evident that when the cylinder is used for dry grinding only thediscllarge-opening may be closed by the old-fashioned grate without thespout, the spout being necessary for taking out the charge after wetgrinding only, although it may be used even after dry grin (1- ing. Toprevent stopping of the discl'iarge by a vacuum caused in the cylinder,air should be admitted above the surface of the liquid. This is done bymaking a conical air-hole, E,through the side of the cylinder oppositeto the dis charge-opening, and fitting tightly into the said aperture aconical plug, I), of porcelain or other vitreous or other materiahandadapted to wear uniformly with the lining B, the inner end of the plugwhen fitted tightlybein g flush with the inner surface of theliningblock in which it fits. The plug D has a handle (I, like that ofan ordinary barrel-tap, the neck beinginarrowed and the body of the plugjoining the latter to the handle. A springlatch, c, pivoted, withv oneend at h, to the shell of the cylinder and in position to be swungtoward or away from the pl ug D, is cut out, shown in Fig. 5, so as toembrace the neck and press on the plug D inward when swung from theposition shown in Fig. 5 into the position of Fig. 1, in which the freeend of the spring-latch e is entered underneaih a retaining hook orcatch, Z).

The tendency of the spring being to expand with its free end away fromthe cylinder-shell, itis evident that when bent against the tendency ofits tension and caught on the hook I) it will exert a constant pressureupon the plug I) to retain it in the aperture E after first tightenin itthere by hand by means of the handle (Z. \Vhen the charge is to be takenout of the cylinder, the aforesaid spring-latch e is turned aside, as inFig. 5, and the plug I) taken out by means of the handle (I.

The discharge maybe collected in any suitable receptacle below thedischarge-spout, or

may be conveyed to a tank a distance away from the cylinder byconnecting a conveyingpipe to the end of the spout.

l Iaving thus described my invention, I claim as new and desire tosecure by Letters Patent- 1. In a triturating-mill, the combination of acover, J, composed of the cap (1', and the inner block, c, secured tothe said cap, with the cylinder provided with lining having an integralblock, K, formed with a hole or opening suitable to tightly fit the saidblock 6', substantially as specified.

2. The combination, with a triturating-cylinder having a charge-opening,of the spout or funnel L, provided with an inner grate, Z, and adiscl'iarge-pipe, M, and adapted to replace the cover in thecharge-opening, substantially as specified.

3. The combination, with a triturating-cylinder having a charge-openingand ring it, of the spout or funnel L, provided with an inner grate, Z,and an. outer discharge-pipe, M, and adapted to replace the cover in theeharge-openin g, the same being provided with a flange, N, andapacking-ring, n, in the said flange, and with the screw-seat O and aset screw engaging the said seat and threaded through an arm or barattached to the said cylinder to form a ti ght packing with the ring Ir,surrounding the discharge-opening, substantially as hereinbe'fore setforth.

4. In a triturating-mill, the combination, with the cylinder havinglining B, dischargeopcning, and an air-hole, E, to facilitate thedischarge through said opening, of the plug D, fitting tightly the saidair-hole, said plug being made of material adapted to wear off by thegrinding action evenly with the inner lining, l3.

In a trituraiing-mill, the combination, with the cylinder having liningli, dischargeopening, and an airhole, E, to facilitate the dischargethrough said opening, of the plug D, fitting tightly the said air-hole,and the spring-latch e and catch Z), to tighten the said plug,substantially as specified.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this Bid day of January, 18st.

J OI IAN ROBERT AILSING.

IVitnesses:

A. XV. ALMovIs'r, T. M. Gnossnnn.

